摘要
针对微弱信号数字相关检测系统的应用问题,设计了基于FPGA的FIR数字滤波器.通过对不同结构的FIR滤波器的特性进行分析比较,结合运算处理速度和资源消耗等因素,确定采用优化的分布式算法来设计数字滤波器.最后对设计的FIR低通数字滤波器进行了功能仿真,仿真结果显示:设计的FIR低通数字滤波器能够有效滤除带外噪声,能够满足数字信号相关检测系统的应用要求.
FIR digital filter based on FPGA is designed for the application of the weak signal digital correlation detection system. The design adopts the optimized distributed algorithm after comparing the characteristics of different structure of FIR filter and considering such factors as the comprehensive processing speed and resource consumption. Finally, the functional simulation is carried out for the designed FIR low--pass digital filter. Simulation results show that the FIR low--pass digital filter can effectively filter out noise outside of the passband, and it is satisfied with application requirement of the weak signal digital correlation detection system.
出处
《四川文理学院学报》
2016年第5期33-35,共3页
Sichuan University of Arts and Science Journal
基金
四川文理学院2014年度青年启动项目"GMR生物传感器专用数字锁相检测电路设计"(2014Z006Q)
